Question

A 30 kg block is on the floor and is pushed to the right with a 60 N force while the friction is 15 N.a) Draw a force diagram showing all of the forces present on the blockb) The force causes the block to move with what acceleration?

Answer 1

Answer:

b) 1.5 m/s²

Explanation:

There is a force to the right of 60 N and the friction that goes to the left of 15 N, then the force diagram is

Now, to calculate the acceleration, we will use the second law of newton, so

Fnet = F - Ff = ma

Replacing F = 60N, Ff = 15N, and m = 30 kg, we get:

60N - 15N = (30 kg)a

45N = (30 kg)a

45N/30 kg = a

1.5 m/s² = a

Therefore, the acceleration is 1.5 m/s²